diff --git a/tmux.conf b/tmux.conf
index c93bf4b..1e7ff09 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -2,6 +2,9 @@
 set-option -g prefix C-a
 bind-key C-a last-window
 
+# set default shell
+set-option -g default-shell /bin/zsh 
+
 # Window size constraints
 setw -g aggressive-resize on
 
diff --git a/vimrc b/vimrc
index fe1e8be..f32c519 100644
--- a/vimrc
+++ b/vimrc
@@ -57,6 +57,7 @@ Bundle 'fholgado/minibufexpl.vim.git'
 Bundle 'Lokaltog/vim-powerline.git'
 Bundle 'Lokaltog/vim-distinguished.git'
 Bundle 'scrooloose/nerdtree.git'
+Bundle 'ervandew/supertab.git'
 
 " toggle showing nerd-tree
 :nmap <leader>e :NERDTreeToggle<CR>